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VOL. 11, ISSUE 2 (2026)
Seasonal dynamics of insect pests in Little Millet (Panicum sumatrense) in relation to weather parameters in coastal agroecosystems of Karaikal
Authors
M Naveenkumar, M Kandibane, S Thulasi
Abstract
Investigation on the seasonal incidence of
major insect pests of little millet (Panicum sumatrense) was carried out
in field experiments during Summer and Kharif 2024. The dominant pests observed
were shoot fly (Atherigona pulla), pink stem borer (Sesamia inferens),
flea beetle (Chaetocnema pusaensis), leaf folder (Cnaphalocrocis
medinalis), earhead bug (Leptocorisa acuta), and aphid (Aphis
craccivora). Pest incidence exhibited distinct seasonal patterns, with peak
populations occurring during the 10th–14th SMW in Summer
2024 and 27th–32nd SMW in Kharif 2024. Aphids and leaf
folder were recorded relatively higher population levels. Correlation analysis
indicated that most pests showed negative associations with relative humidity,
particularly evening RH, while temperature exerted variable effects.
Significant relationships were observed between key pests and selected weather
parameters. Multiple linear regression analysis revealed that weather factors
accounted for 53–71 per cent and 55–67 per cent variation in pest populations
during Summer and Kharif, respectively.
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Pages:157-163
How to cite this article:
M Naveenkumar, M Kandibane, S Thulasi "Seasonal dynamics of insect pests in Little Millet (<i>Panicum sumatrense</i>) in relation to weather parameters in coastal agroecosystems of Karaikal". International Journal of Entomology Research, Vol 11, Issue 2, 2026, Pages 157-163
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